Determination of tool point FRF of micro tools under operational conditions using analytical methods

ÖZŞAHİN, ORKUN

doi:10.17341/gazimmfd.416362

Determination of tool point FRF of micro tools under operational conditions using analytical methods

JOURNAL OF THE FACULTY OF ENGINEERING AND ARCHITECTURE OF GAZI UNIVERSITY, cilt.33, sa.2, ss.517-526, 2018 (SCI-Expanded)

Yayın Türü: Makale / Tam Makale
Cilt numarası: 33 Sayı: 2
Basım Tarihi: 2018
Doi Numarası: 10.17341/gazimmfd.416362
Dergi Adı: JOURNAL OF THE FACULTY OF ENGINEERING AND ARCHITECTURE OF GAZI UNIVERSITY
Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus, TR DİZİN (ULAKBİM)
Sayfa Sayıları: ss.517-526
Orta Doğu Teknik Üniversitesi Adresli: Evet

Özet

Tool point Frequency Response Function (FRF) for micro tools cannot be measured using impact testing and modal analysis. In addition, micro machining operations are performed at high spindle speeds and due to the gyroscopic moments and centrifugal forces tool point FRF changes during machining operations. In this study, micro tools are modeled analytically including the fluted geometry of the tool and operational effects. Moreover, for the machining centers where spindle geometry is unknown, a new coupling method is proposed which enables to couple experimentally obtained idle spindle dynamics with analytically calculated rotating holder-tool dynamics.